LET-301 Replacement Transformer 300W 12V AC Electronic Unit (Replacement for GE Lightech LET-301 GELT300A12012C 66973) 300 Watt 12 Volt AC Electronic Transformer Great Replacement for LET-301 from Lightech PLEASE CHECK DIMENSIONS TO MAKE SURE NEW REPLACEMENT FITS Item's Dimensions: L: 4 3/4" x W: 3 1/4" x H: 1 1/2" / Center Hole: 7/16" Ul Approved and Listed - Dimmable Unit